CIENA CORP

CUSIP: 171779AE1 Class: CNV

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

Note: Option positions (PUT/CALL) are excluded.

Q3 2015
Shares 220,000 Value ($000) $217 Avg Close — Range —
Q2 2015
Shares 220,000 Value ($000) $221 Avg Close — Range —
Q1 2015
Shares 220,000 Value ($000) $218 Avg Close — Range —
Q4 2014
Shares 220,000 Value ($000) $218 Avg Close — Range —